Oct. 24.SAW a large squad of our own deserters, (over 300) surrounded with a cordon of armd guards, marching along Pennsylvania avenue. The most motley collection I ever saw, all sorts of rig, all sorts of hats and caps, many fine-looking young fellows, some of them shame-faced, some sickly, most of them dirty, shirts very dirty and long worn, &c. They trampd along without order, a huge huddling mass, not in ranks. I saw some of the spectators laughing, but I felt like anything else but laughing. These deserters are far more numerous than would be thought. Almost every day I see squads of them, sometimes two or three at a time, with a small guard; sometimes ten or twelve, under a larger one. (I hear that desertions from the army now in the field have often averaged 10,000 a month. One of the commonest sights in Washington is a squad of deserters.)